π |
2 |
π |
3 |
π |
2 |
1 |
2 |
| ||
2 |
π |
4 |
1 |
2 |
π |
2 |
π |
4 |
π |
2 |
3π |
8 |
π |
8 |
3π |
8 |
π |
8 |
π |
8 |
5π |
8 |
| ||
2 |
π |
4 |
1 |
2 |
π |
4 |
| ||
2 |
π |
4 |
π |
4 |
5π |
4 |
π |
4 |
3π |
4 |
π |
4 |
BC |
sinA |
AC |
sinB |
2 | ||
sin
|
AC | ||
sin
|
6 |
π |
4 |
| ||
10 |
π |
2 |
3π |
4 |
A.-
| B.
| C.
| D.-
|
a |
b |
a |
b |
8 |
5 |
π |
4 |
a |
b |
a |
b |
1 |
5 |
π |
2 |
3 |
π |
2 |
a |
b |
π |
2 |
a |
b |
2 |
5 |
5
| ||||
2cos2
|
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